Produced by Greg Weeks and the Online Distributed Proofreading Team at https://www.pgdp.net 20c ASTOUNDING STORIES OF SUPER-SCIENCE _On Sale the First Thursday of Each Month_ W. M. CLAYTON, Publisher HARRY BATES, Editor DR. DOUGLAS M. DOLD, Consulting Editor * * * * * [Illustration] The Clayton Standard on a Magazine Guarantees _That_ the stories therein are clean, interesting, vivid, by leading writers of the day and purchased under conditions approved by the Authors' League of America; _That_ such magazines are manufactured in Union shops by American workmen; _That_ each newsdealer and agent is insured a fair profit; _That_ an intelligent censorship guards their advertising pages. _The other Clayton magazines are_: ACE-HIGH MAGAZINE, RANCH ROMANCES, COWBOY STORIES, CLUES, FIVE-NOVELS MONTHLY, ALL STAR DETECTIVE STORIES, RANGELAND LOVE STORY MAGAZINE, WESTERN ADVENTURES, and FOREST AND STREAM. _More than Two Million Copies Required to Supply the Monthly Demand for Clayton Magazines._ * * * * * VOL. III, No. 1 CONTENTS JULY, 1930 COVER DESIGN _Painted in Water-colors from a Scene in "Earth, the Marauder."_ BEYOND THE HEAVISIDE LAYER CAPT. S. P. MEEK 5 _For Eighty Vertical Miles Carpenter and Bond Blasted Their Way--Only to Be Trapped by the Extraordinary Monsters of the Heaviside Layer._ EARTH, THE MARAUDER ARTHUR J. BURKS 18 _Out of Her Orbit Sped the Teeming Earth--A Marauding Planet Bent on Starry Conquest._ (Beginning a Three-part Novel.) FROM AN AMBER BLOCK TOM CURRY 50 _A Giant Amber Block at Last Gives Up Its Living, Ravenous Prey._ THE TERROR OF AIR-LEVEL SIX HARL VINCENT 62 _From Some Far Reach of Leagueless Space Came a Great Pillar of Flame to Lay Waste and Terrorize the Earth._ (A Novelet.) THE FORGOTTEN PLANET SEWELL PEASLEE WRIGHT 88 _The Authentic Account of Why Cosmic Man Damned an Outlaw World to Be, Forever, a Leper of Space._ THE POWER AND THE GLORY CHARLES W. DIFFIN 104 _Sadly, Sternly, the Old Professor Reveals to His Brilliant Pupil the Greater Path to Glory._ MURDER MADNESS MURRAY LEINSTER 109 _More and More South Americans Are Stricken with the Horrible "Murder Madness" That Lies in the Master's Fearful Poison. And Bell Is Their One Last Hope as He Fights to Stem the Swiftly Rising Tide of a Continent's Utter Enslavement._ (Part Three of a Four-part Novel.) THE READERS' CORNER ALL OF US 134 _A Meeting Place for Readers of Astounding Stories._ * * * * *